Model registry
The model registry is the agent-config building block for model selection: which models agent work runs on per tenant and workload. The registry surface is /ai/models, with Models, Providers, and Gateways tabs and a sync-from-gateway action. Each row carries name, key, provider, capabilities, context window, per-unit price, and status; inactive rows stay visible so deprecations are deliberate.
- PRESHos is an operating layer, not a model. It sits between agents and the stack, governing what agents can see, touch, and change; model choice does not change the three guarantees (isolation, approvals, audit).
- Provisioning carries an
ai_gateway_keystep (token-gated and overridable, skippable without blocking core-ready). Provider wiring behind that key is platform-managed; its specifics are not documented in this wiki. - Until this page is sourced: do not promise stakeholders specific models, routing behavior, or per-model capability differences. Check the product UI or ask the PRESHai team.
- Whatever the model, the operating discipline holds: one goal per session, scoped environment, gated risky actions, recorded outcome.

Catalog, favorites, and governed selection
Section titled “Catalog, favorites, and governed selection”- The Models catalog is the tenant’s shelf: richer per-model detail behind each row, with personal favorites that reorder each member’s own pickers. Favorites are per member — they change picker order, nothing about session scope.
- Agents govern the picker with a
model_selectionpolicy — allow, deny, or recommend — enforced on session start and dispatch. The registry shows what the tenant carries; the agent config decides what a session may pick. See Agent config and the Model selector. - Non-chat image and embedding models are excluded from the Agent Ops chat pickers even when the tenant carries them. They remain callable by agents behind the scenes; they are simply not selectable as a session’s reasoning model.
- Treat the product UI as the source of truth for the exact catalog columns, favorite controls, and policy fields this page does not name.
Related: AI providers for the wiring behind the gateway key. Member view: Model selector. Grounding on the provisioning step: Provisioning and internals.

